powerpc/83xx: Remove second USB node from SBC834x DTS

Since only one of the SoC USB devices is brought out to a physical
connector on the board, remove the 2nd (USB-DR) node from the DTS.
Having it present and USB enabled will cause a hang at boot.
Signed-off-by: NLiang Li <liang.li@windriver.com>
Signed-off-by: NYang Shi <yang.shi@windriver.com>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/sbc8349.dts

@@ -146,18 +146,6 @@
 			phy_type = "ulpi";
 			port0;
 		};
-		/* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */
-		usb@23000 {
-			device_type = "usb";
-			compatible = "fsl-usb2-dr";
-			reg = <0x23000 0x1000>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			interrupt-parent = <&ipic>;
-			interrupts = <38 0x8>;
-			dr_mode = "otg";
-			phy_type = "ulpi";
-		};
 
 		enet0: ethernet@24000 {
 			#address-cells = <1>;